Door lock key cylinder housing



FIG. 1 is a front and bottom perspective view of a door lock key cyclinder housing showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof, the left side being a mirror image of that shown; and,

FIG. 4 is a rear elevational view thereof.

The broken-line disclosure is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a door lock key cylinder housing, as shown and described. 